According to their Facebook post, “Shrek and Smurf,” were dropped off to them on Monday and although they have seen their fair share of things come into the rescue center, this was a first. And the police who dropped the kittens off at the shelter did not have any information on who might have done this to the kittens or where exactly they came from.

A volunteer from the shelter, Katie Jane, said on Facebook that whoever did this to these kittens committed “a dreadful act of cruelty.”

Jane also added that the kittens have been making “marvelous progress.” She contacted a veterinary poison information service to inquire about how she should remove the ink safely from the kittens’ bodies and she has been feeding them every four hours.